AdPower

After installation,when driving can feel the difference in response and acceleration, better then before.

Improve acceleration…

Sceptical at first. Bought 2 to experiment as in Theory it sounds workable. Received with 1 week or so. Pasted on air intake hose and box as stated in manual. I

My engine sound and feel more crispy and lighter. Not sure is psychological. So far no fuel saving.

Overall given its reasonable price point, I guess is no harm fixing it

After pasted adPower on the air filter box, my 2018 Mazda 3 accelerates faster and smoother. Fuel consumption improves from 8.1 to 6.1L/km.
Ordered another 1 to paste on the air duct hopefully can achieve more improvement.

The magic sticker!

Pasted 2 label along the air intake channel, with the guidance from AD Power. Immediate feel is lighter throttle, and FC improved...Unbelievable.